diff --git a/src/if_python.c b/src/if_python.c
index 4f23ffa..1b07801 100644
--- a/src/if_python.c
+++ b/src/if_python.c
@@ -26,7 +26,7 @@
 # undef _POSIX_THREADS
 #endif
 
-#if defined(_WIN32) && defined (HAVE_FCNTL_H)
+#if defined(_WIN32) && defined(HAVE_FCNTL_H)
 # undef HAVE_FCNTL_H
 #endif